Tray transfer unit and automatic test handler having the same

Details Tray transfer unit and automatic test handler having the same Tray transfer unit and automatic test handler having the same

2003-12-17

2008-03-25

Hollington, Jermele (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

Reexamination Certificate

active

07348768

ABSTRACT:
Provided is a tray transfer apparatus having a transfer plate arranged and configured to support a tray containing a number of semiconductor devices in an array of pockets. The tray transfer apparatus further includes a driving means arranged and configured for the movement and positioning of the transfer plate. The transfer plate is provided with a plurality of tray holders that may be selectively engaged to support a tray and with detecting means corresponding to the array of pockets provided in a supported tray. In instances in which one or more of the detecting means sense the presence of more than one semiconductor device in a corresponding pocket of a supported tray, the tray transfer apparatus will generate an alarm signal and/or suspend operation so that corrective measures may be taken.

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